<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META content="text/html; charset=iso-8859-1" = http-equiv=Content-Type> <META content="MSHTML 5.00.2919.6307" name=GENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=#ffffff> <DIV><FONT size=2>Not to belabor all this roller stuff, but........are = you measuring the knuckle height while it is mounted in the shank? If so, I = wonder if some of your variation is coming from the depth of the slot in the = shank that the knuckle core mounts in. OR, I may simply not have a clue as to = what/how you are measuring and you should just ignore this note.</FONT></DIV> <DIV> </DIV> <DIV>Terry Farrell<BR>Piano Tuning & Service<BR>Tampa, Florida<BR><A = href="mailto:mfarrel2@tampabay.rr.com">mfarrel2@tampabay.rr.com</A></DI= V> <BLOCKQUOTE style="BORDER-LEFT: #000000 2px solid; MARGIN-LEFT: 5px; MARGIN-RIGHT: = 0px; PADDING-LEFT: 5px; PADDING-RIGHT: 0px"> <DIV style="FONT: 10pt arial">----- Original Message ----- </DIV> <DIV style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: = black"><B>From:</B> <A href="mailto:jonpage@mediaone.net" = title=jonpage@mediaone.net>Jon Page</A> </DIV> <DIV style="FONT: 10pt arial"><B>To:</B> <A = href="mailto:pianotech@ptg.org" title=pianotech@ptg.org>pianotech@ptg.org</A> </DIV> <DIV style="FONT: 10pt arial"><B>Sent:</B> Sunday, September 10, = 2000 5:31 PM</DIV> <DIV style="FONT: 10pt arial"><B>Subject:</B> Re: Roller Size, = again</DIV> <DIV><BR></DIV><FONT size=3>At 09:53 PM 09/10/2000 +1000, you wrote:<BR>Ron,<BR>Thanks for reiterating on the lower friction effect = from a smaller knuckle.<BR>I should have gone into greater detail in my = response but was pressed for time<BR>and figured your statement would be remembered = and just left it at 'lower friction'.<BR><BR>I still have the shanks = separated in regards to roller height and will get someone on it tomorrow.<BR>I = would imagine there is a tolerance granted for sanity purposes. As this is = my first encounter<BR>with close examination of this height.  I will = maintain a 0.010 window (+/- .005 from average height,<BR>this set's average is = .645; so .640 to .650, it might get tighter as the work progresses). I = included<BR>the thickness of the shank assuming that the shanks are uniform because I = only have a thickness<BR>gauge and not a height gauge. I'll check the = shanks' thicknesses tomorrow.<BR>Tolerance suggestions welcome.<BR><BR>It's = always something . . . <BR><BR>Regards,</FONT><BR> <DIV>Jon Page,   piano technician</DIV> <DIV>Harwich Port, Cape Cod, Mass.</DIV> <DIV><A href="mailto:jonpage@mediaone.net" = EUDORA="AUTOURL">mailto:jonpage@mediaone.net</A></DIV>~~~~~~~~~~~~~~~~~= ~~~~~~~~~~~~~~~~~~~~~~~ </BLOCKQUOTE></BODY></HTML>